=>
16. A (With high quality programs, TC and video tapes increase the viewers' knowledge,... -> không nhắc tới as much as possible)
17. B (With high quality programs, TV and video tapes increase the viewers' knowledge...)
18. B (The media can be very helpful to people who carefully choose the movies and shows that they watch)
19. C (Additionally, it offers language learners the advantage of "real-life" audiovisual instruction and aural comprehension)
20. D (Secondly, those who spend more time watching TV than manual work can easily suffer from near-sightedness and obesity)
